i'm using CoreContainer in jRuby. I'd like my data directory to be the
standard solr-home/data. But since CoreContainer == multi-core, I need to
supply a core name. Is it possible to use CoreContainer without a "core"? is
it possible to set the dataDir? Also, it seems that no matter what I set as
the solr home, a "solr" directory always gets created in the same directory
that I'm execuing my script.